Gaya APA
DALE, M. et al (2003).
Developing management skills; tecniques for improving learning & perfomance= .
Jakarta:
Bhuana Ilmu Populer.
Gaya MLA
DALE, Margaret. et al.
"Developing management skills; tecniques for improving learning & perfomance=".
Jakarta:
Bhuana Ilmu Populer,
2003.
Buku.